Naslov
The circumstellar environment of pre-SN Ia systems

Autori
Harvey, E. ; Redman, M. P. ; Boumis, P. ; Kopsacheili, M. ; Akras, S., Sabin, L. ; Jurkic, T.

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Supernova Remnants: An Odyssey in Space after Stellar Death / - , 2016

Skup
Supernova Remnants: An Odyssey in Space after Stellar Death

Mjesto i datum
Khania, Grčka, 06.06.2016. - 11.06.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
supernova

Sažetak
Here we explore the possible preexisting circumstellar debris of supernova type Ia systems. Classical, symbiotic and recurrent novae all accrete onto roughly solar mass white dwarfs from main sequence or Mira type companions and result in thermonuclear runaways and expulsion of the accreted material at high velocity. The expelled material forms a fast moving shell that eventually slows to planetary nebula expansion velocities within several hundred years. All such systems are recurrent and thousands of shells (each of about 0.001 Mo) snow plough into the environment. As these systems involve common envelope binaries the material is distributed in a non-spherical shell. These systems could be progenitors of some SN Ia and thus explode into environments with large amounts of accumulated gas and dust distributed in thin non-spherical shells. Such shells should be observable around 100 years after a SN Ia event in a radio flash as the SN Ia debris meets that of the ejected material of the systems previous incarnation.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA